84669 person learning
152542 person learning
20005 person learning
5487 person learning
7821 person learning
359900 person learning
3350 person learning
180660 person learning
48569 person learning
18603 person learning
40936 person learning
1549 person learning
1183 person learning
32909 person learning
由N多个类，相互继承，请问这样做的缺陷在哪儿，JAVA的基类 可以是Object 然后有按钮类，窗口类，以及其他类，这些类专门负责自己的领域，然后通过一层一层的继承
业精于勤，荒于嬉;行成于思，毁于随。
![[Web front-end] Node.js quick start](https://img.php.cn/upload/course/000/000/067/662b5d34ba7c0227.png)
业精于勤，荒于嬉;行成于思，毁于随。